Test the claim of the umpires strike rate


Discuss the below:

For the following questions answer the following

(1)State your hypothesis

(2)Sketch your distribution displaying critical values

(3)Show the calculation of your test statistic

(4)State your decision regarding your hypothesis

Q1: In a Gallup poll, 1,402 randomly selected adults were surveyed and 396 of them smoked in the past week. Use (alpha) = .10 to test the claim that not more than 30% of adults have smoked within the past week.

Q2: In a recent year, some professional baseball players complained that umpires were calling more strikes than the average rate of 64% called in the previous year. During a given period, one umpire called 2,725 strikes out of 4,217 pitches thrown. Use (alpha)=.02 to test the claim that this umpires strike rate is greater than 64%.

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Basic Statistics: Test the claim of the umpires strike rate
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